Arthur



(No Model.) 1 Y O. GRANGER. PROCESS o1' MANUFAGTURING GAS. No. 418,711.Patented' Jan. 7, 1890. li- S11-11! UNITED STATES PATENT OFFICE.'

ARTHUR O. GRANGER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE UNITEDGAS IMPROVEMENT COMPANY, OF SAME PLACE.

.PROCESS 0F MANUFACTURING GAS.

SPECIFICATION forming part of Letters Patent N o. 418,711, dated January'7, 1890.

Application filed June 2,1885. Serial No. 167,384. (No model.)

To @ZZ whom, it may concern:

Be it known that I, ARTHUR O. GRANGEE, of the city and county ofPhiladelphia, and State of Pennsylvania, have invented an Improvement inthe Process of Manufacturing Gas, of which the following is aspecification.

My invention has reference toa process for the manufacture of water-gas;and it consists in first heating up a bed of carbon in a generator, andwith the products of combustion therefrom heating up a superheater orfixingchamber by internal combustion, then passing steam into the bed ofcarbon-producing water-gas, then passing the water-gas mixed withcarbureting-luid through the superheater, entering at the end where itis least hot, and causing it to pass through the superheater, graduallyentering a zone of greater temperature, until it nally escapes t0 thewasher or holder from the end which is hottest, as is fully set forth inthe following specification and referred to in the claim.

The object of my invention is to insure the illuminating-gas passinginto the superheater at the least hot portion' and leaving the same atits hottest part, by which the thorough decomposition and xin g of thegases resu1t,and at the same time the production of lamp-black isentirely overcome. `In apparatus in which the hydrocarbon vapors orliquids are caused to enter the superheater at its hottest portion partof the hydrocarbon is instantly converted into lamp-black and fixed uponthe filling or lining of the superheater. By overcoming this productionof lamp-black I greatly increase the production of illuminating-gas, asWell as improve the working of the apparatus.

In the drawing is shown asectional elevation of water-gas apparatus inwhich to carry out my improved process.

His a superheater, and G is a generator, whlch are connected together inany suitable manner, as by the connecting flue or passageway E, whichopens from the top ofthe generator into the bottom ofthe superheater, orby an auxiliary flue connect-ingwith the upper part of the saidsuperheater. The generator is provided, as usual, with the blastpipe Iand the steam-pipe J, preferably entering below the grate-bars.

The superheater H is provided with a lower combustion-chamber K andauxiliary flue C, connecting the flue E with therupper part of the saidsuperheater and above the filling I. A is a Water-cooled Valve and works4on the water-cooled seat B, and is adapted to close the entrance tothechamber K or the flue C, by which the product from the generator maybe caused to pass either into ,the chamber K or the flue C, as desired,thuscausing the said products to pass into the top or bottom of thesuperheater.

L is the smoke-outlet opening from the top vof the superheater, and F isthe gas-outlet opening from the chamber K and connecting with the usualWater seal or Washer.

D is the hydrocarbon-spraying nozzle, which admits hydrocarbon fluidinto the upper part of the superheater, preferably where the water-gas,which passes through the flue C, enters the superheater. If desired, theiuid hydrocarbon may be admitted anywhere in the iiue C or in the superheater proper, or it might be admitted in the generator. Y

In making gas the valve A is turned up, so

as to close the iiue C and open the passage- Way from the generator intothe bottom of the superheater or its chamber K. The smokeoutlet L isopened and the blast from pipe I is turned on. The coal in the generatoris brought to incandescence by the blast from the pipe I, and theproducts are caused to pass into the chamber K and are burned therein,the products therefrom passing up through the iilling or internalbrick-Work of the superheater. and escaping. by the chimney-outlet. Theairblast from pipe I is then shut oif, chimney Lis closed, and valve Aturned so as to close the entrance to the chamber K from passes off byilue F through the usual Water seal to the holder, if desired,preferably passing through purifying apparatus before reaching the saidholder.

If desired, the auxiliary flue C might be separate and distinct from thesuperheater and built in the form of an external tube, and in place ofone valve A two valves may bet used, one controlling the entrance to thebottom of the superheater or chamber K, and

,location may be given to the gas-outlet or the steam and blast pipes.

In this application I do not claim the apparatus, as that formssubject-matter of an application of mine filed January 9, 1885, ScrialNo. 152,385.

Having now described my invent-ion, what I t claim as new, and desire tosecure by Letters Patent, is-

The process of manufacturing gasA which 1 consists in raising abody ofcarbonaceous material to a high degree of heat by burning it with air,and at the same time burning the gaseous products of combustion With airand highly heating a body of refractory material, then suspending thecombustion and introducing directly into the coolest portion of theheated refractory material hydrocarbon liquid, causing it to passthrough the refractory material in a direction the reverse of that inwhich the products 'of combustion passed through during the process ofheating, then at the same time causing steam to pass through thehighly-heated carbonaceous material and be decomposed into carboniooxide and hydrol gen gas, then causing'such gas asfast as it isgenerated to pass through the refractory mal terial in the samedirection and in company i with thehydrocarbon liquid, and therebycombine with the vapors and gases of the hydrocarbon as they aregenerated by contact of the oil with the refractory material atsuccessively increasing temperatures.

In testimony of which inventionI hereunto f set my hand.

A. O. GRANGER.

Witnesses:

WILLIAM C. MAYNE, R. M. HUNTER.

